AN ALLEGED murderer has undergone a dramatic courtroom transformation like no other.

Eric Millerberg, who made headlines for his bad-boy appearance during his committal hearing in 2012, emerged in court this week looking rather ... well ... normal, in comparison.

The 38-year-old is facing charges of child abuse, homicide, first-degree felony, obstruction of justice, unlawful sexual conduct with a minor and abuse and desecration of a human body after the 2011 murder of 16-year-old Alexis Rasmussen, who babysat Millerberg’s children.

NOW: A demure Millerberg during his trial on Wednesday, his neck tattoos just poking out of his collar. Picture: AP Photo/The Salt Lake TribuneSource: AP

THEN: Eric Millerberg, dressed in a prison outfit, appears before the Second District Court in Ogden, Utah, Monday, April 9, 2012. Picture: AP Photo/Standard-ExaminerSource: Supplied

At his trial in Utah, gone was the bearded, skinhead con — instead replaced with a suit, tie, clean-shaven face and a pair of specs.

His heavily tattooed hands were a reminder of Millerberg’s former self, but his neck tattoo reading “Death” — a representation of his relationship with white supremacist group Silent Aryan Warriors — was concealed by his collared shirt.

Millerberg is alleged to have injected his young victim with a fatal concoction of illicit drugs on the night of her murder on September 10, 2011.

16-year-old Alexis Rasmussen was allegedly involved in a sexual, drug-fuelled relationship with the Millerbergs.Source: Facebook

Millerberg and his wife, Dea, had a drug-fuelled, salacious sexual relationship with Rasmussen that lead to her death in September, police allege.

“She died in his home after he injected her with heroin and methamphetamine. That’s what the evidence will show. (Millerberg) did nothing to try to save this young girl.

“He did not call 911, he did not try to involve police or call an ambulance. He did not take her to the hospital. He did nothing.”

Police mugshots of Eric and Dea Millerberg.Source: Supplied

Millerberg’s wife, Dea, who faces charges of abuse and desecration of Alexis’ body as well as child endangerment, told the court Rasmussen reported feeling cold and was shaking, but that she didn’t think much of it at the time.

Later that night, Alexis was dead.

“She wasn’t moving. She had mucousy stuff coming out the side of her mouth. She didn’t wake up,” Mrs Millerberg said.

During the trial the court heard how the Millerbergs panicked, so Eric dumped Alexis’s body in a shallow grave around Weber Canyon, Utah, close to an unusual geological formation called Devil’s Slide.

A NOTE ABOUT RELEVANT ADVERTISING: We collect information about the content (including ads) you use across this site and use it to make both advertising and content more relevant to you on our network and other sites.